feat: show call participants in room list (Discord-style)

apps/web/test/unit-tests/slash-commands/part-test.ts

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2026 Element Creations Ltd.
+ * Copyright 2024 New Vector Ltd.
+ * Copyright 2022 The Matrix.org Foundation C.I.C.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+import { type MatrixClient, PendingEventOrdering, Room } from "matrix-js-sdk/src/matrix";
+import { mocked } from "jest-mock";
+
+import Modal, { type ComponentType, type IHandle } from "../../../src/Modal";
+import { setUpCommandTest } from "./utils";
+import { type Command } from "../../../src/slash-commands/command";
+
+describe("/part", () => {
+    const roomId = "!room:example.com";
+
+    function setUp(): {
+        client: MatrixClient;
+        command: Command;
+        args?: string;
+        room1: Room;
+        room2: Room;
+    } {
+        const spy = jest.spyOn(Modal, "createDialog");
+        spy.mockReturnValue({ close: () => {} } as unknown as IHandle<ComponentType>);
+
+        const { client, command, args } = setUpCommandTest(roomId, "/part #foo:bar");
+        expect(args).toBeDefined();
+
+        const room1 = new Room("!room-id", client, client.getSafeUserId(), {
+            pendingEventOrdering: PendingEventOrdering.Detached,
+        });
+
+        const room2 = new Room("!other-room", client, client.getSafeUserId());
+
+        mocked(client.getRoom).mockImplementation((rId: string): Room | null => {
+            if (rId === room1.roomId) {
+                return room1;
+            } else if (rId === room2.roomId) {
+                return room2;
+            } else {
+                return null;
+            }
+        });
+        mocked(client.getRooms).mockReturnValue([room1, room2]);
+
+        return { client, command, args, room1, room2 };
+    }
+
+    it("should part room matching alias if found", async () => {
+        const { client, command, args, room1, room2 } = setUp();
+        room1.getCanonicalAlias = jest.fn().mockReturnValue("#foo:bar");
+        room2.getCanonicalAlias = jest.fn().mockReturnValue("#baz:bar");
+
+        await command.run(client, room1.roomId, null, args).promise;
+
+        expect(client.leaveRoomChain).toHaveBeenCalledWith(room1.roomId, expect.anything());
+    });
+
+    it("should part room matching alt alias if found", async () => {
+        const { client, command, args, room1, room2 } = setUp();
+        room1.getAltAliases = jest.fn().mockReturnValue(["#foo:bar"]);
+        room2.getAltAliases = jest.fn().mockReturnValue(["#baz:bar"]);
+
+        await command.run(client, room1.roomId, null, args).promise;
+
+        expect(client.leaveRoomChain).toHaveBeenCalledWith(room1.roomId, expect.anything());
+    });
+});